Improvement in apparatus for molding in flasks



Unirse Starts Parent Orl-rea EDWARD SATTERLEE, OF ALBANY, NEWT YORK.

IMPROVEMENT INAPPARATUS ,FOR lVlOLDING IN FLASKS.

Specification forming part of Letters Patent No. @,661, dated January 13, l82.

To all whom, t may concern:

Be it known that I, EDWARD SATTERLEE, of the city and county of Albany, and State ot' New York, have invented a new and useful machine for the molding of patterns in sand or other suitable material for metal castings, which machine I denominate Satterlees Molding-Machine 5 and I do hereby declare that the following is a fnll, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, in which- Figure l represents a profile section of the machine. Fig. 2 represents the rear of the same. Fig. 3 represents the front of the same. Fig. 4 represents a plan of the lower part of the machine, with a portion of the apparatus below the line marked on Fig. l.

Fig. 5 represents the movable bed reversed, to

show the apparatus attached to its under surface. Fig. 6 represents the curb. Fig. 7 rep-- resents the flask. Fig. 8 represents the platform for the flask. Fig. 9 represents the upper plate of the movable bed reversed, in order to show the mechanism by which it is raised and lowered. Fig. 1() represents a plane view of the under part 0r bottom of the hopper.

In all the figures similar letters indicate the same parts.

The principle or nature of my invention consists in the making of molds in sand or other A suitable material,preparatory to making metal f castings therefrom, by the use and application of certain apparatus and mechanical movements so arranged as by the continued motion of a single shaft the work is performed of sifting sand upon the pattern, filling the flask with sand and cutting off the same when the flask is filled, pressing the sand into the flask and striking off the surplus sand after the same is pressed, and the moving, stopping, and start- -ing the bed holding the flask to and`from the different points where the said work of sifting, lling, and'pressing is performed.

The machine consists of a strong frame of wood or metal, with certain machinery attached thereto.

In the drawings it is represented as formed of upright posts A A A A, framed together by means of twolower longitudinal sills,EF, as well as by lower and upper cross-beams. The lower part ofthe frame between the sills E F contains and supports the following apparatus,

viz: At eaeh end of the frame are horizontal shafts G H, which have near or at their center chain-wheels carrying the chain I, extending horizontally between them. Between the chain and the sill F is placed a shifting bar, K, being a long wide bar having projecting from its upper surface two curved or angular guidetracks, L M, whose office will be shown hereinafter. The bar K shifts horizontally, being pivoted at N on an arm projecting from sill F. Opposite to this and near sill E is placed another bar or rod, O, extending parallel with the sill and having a slight motion in the direction of its length. On this bar at P is an upright arm or trip. The bar is also attached by pivots tothe levers Q Q2, the pivots working in slots in said levers. The back part of this rod O has attached to it by a pivot an arm terminating in a hook or detent, R, which operates a bell-crank apparatus, hereinafter described. Levers Q Q2 are pivoted on standards fastened to sill E, and are connected by pivots with the rod O. These levers have a motion parallel with each other, being held in that position by connecting-arm X2.

T2 is an arm with weight attached, which operates the levers Q' Q in one direction.

Upon and against the back posts of the frame is arranged the following machinery, (see Fig. 2:) the main or driving shaftS, on

which are placed in succession T, a spur-wheel y running loose on the shaft, but rcapable of attachment to it by cou pling-clutch U, managed by lever V; a bevel-wheel, W, fXedt-o the shaft and cogging into wheel W2, and by it operating an inclined shaft, X; wheel Y, running loose on the shaft and capable of attachment thereto by coupling-clutch a, managed by lever b. This coupling-clutch also can attach to the shaft another free-runnin g wheel, Z.

Above shaft S is shaft c, to which motion is given by wheel d gearing into Y. At each end of this shaft is a crank or crank-wheel, e e, communicating motion to thev press B2, hereinafter to be described, by connecting-rodsff, Below shaft S is shaft It, to which motion is given by wheel Z gearing into awheel, g. Ai; each end of this shaft are two cranks, which, by connecting-rods h 7L, give motion to the bottom slide of the sand-hopper, hereinafter de. scribed.

.I ust behind shaft 7c is a small wheel, t, (scarcely seen inthe drawings,) running loose are operated at different times through levers 5 6 7 by means of pins projecting from the disks of wheels T d Z. Arm 2 operates Vthe bell-crank apparatus N2, which is connected with the movementsy of rod O, also with the coupling-clutch p by its lever p2. This coupling-clutch, Fig. 2, lies between two `bevelwheels, r r2, which run free upon the shaft H, and carries the back chain-wheel referred to in the first part of this specification. These bevel-wheels cog into a third bevel-wheel, r, xed on the lower end of the inclined shaft X. The clutch moves round with the shaft H, (being kept from turning by a slot and feathen) and whenever thrown into one of the wheels causes the shaftll to turn in one direction by the impulse of the drivingfshaft S, and when thrown into the other reverses that motion.j

tion, by which it is moved: alternately from one end of the machine to the other. This bedt is a strong metal platform sliding on the sills E and F, along which it is guided by the guide-slides en. y (Shown at Fig. 5, which is a representation of the bed turned upside down,in order to show the apparatus attached to its lower side.)

From that part of the bed which when in place will traverse over the shifting bar K projects a standard carrying the lateh-dog lw. This is an iron pin hanging down and reaching I just to the surface of the bar K. It swings upon a pivot near the bed-plate, and is so hinged that while the bed is traversing from' the front to therear it will drag or trail over the guidetraeks L M; butnwhen passing in reverse the pin will enter those tracks and operate the bar,

shifting it to the right and left, and thereby moving the coupling-lever b at the back end of the machine. From that part of the bed which will traverse over the bar O another latchdog, i, swings, attached to the bed in a similar manner to theother dog, arranged to drag or trail over` levers Q Q2, and to operate upon them, and also upon trip P, when the bed is .upon the reverse motion, thereby moving the bar O. On the right-hand side of the bedplate a forked arm, x, projects horizontally from it to the rear, for the purpose of operating the coupling-lever V. At the back end of the machine, and alongside of forked arm x, astraight arm, e3, projects still farther back, having a wedge-formed point intended to operate lever 8attaehed to the bell-crank N2. On either side of the bed-plate, projecting outwardly, are two pins, z z, intended to shift lever 9. On the upper side of the bed-plate are two standards, 10 10', supporting on their upper extremities two detents, l2 12, lying vhorizontally and capable of a slight vibration thereon. The front ends of these detents are hook-formed and the back ends wedge-shaped. Their use will be hereinafter described.

Above the bed-plate t, and arranged to move up or down parallel therewith, is a metal platform, A2. This is supported, as the drawings show, without further description, upon four screws, which pass through dies formed in the bed t. Theirheads are furnished each with a small cog-wheel of equal size, and are geared together by a common wheel lying between them. The whole are moved by a .small vertical bevel-wheel, 14, gearing into the common wheel. The shaft or pinion of this small wheel projects to the front of the platform, where by means of a winch it can be readily turned. This platform is intended to receive the flask in which the molding is to be done, and the object of raising and depressing it is to accommodate the depth of the flask to the movements of a packer, D2.

13 13 are steady-pins to hold the moldingiiask on the platform A2.

Between the front posts of the machine is fixed a press (see Fig. 3) consisting of a heavy fiat iron plate, B2, connected by four togglejoint arms with a strong upper cross-bar, C2, which moves between guides,the height of this bar from the top of the machine being regulated by the screws operated by be'vel-geari n g, so plainly shown in the drawings as not to require a specific description.

The arms of the toggle are operated by the connecting-rods ff, drivenvby the cranks e e, heretofore described. Y

To the bottom of the plate B2 there is to be fixed, as needed from time to time, by screws or otherwise, a metal or wooden packer, D2,

of size appropriate for the varying' sizes of lthe flasks used in molding.

The sand-hopper is an oblong box, madeeither of wood or iron, supported by timbers, and having in the bottom openings at e? c5 and d* d5. Through the openings 0* c5 the sand passes which supplies the flask, and imfilled. This plate slides upon horizontal bars, and is operated by levers h3, connected with the cranks ha. The opening d'L d5 is divided into three parts, through which the sand passes which supplies the sifting-box, the sand being cut off by sliding plate or knife ff, made to conform to the size of the openings, and is operated by levers 9 and 102. Below the lastnamed openings is a sifting-box, Bf, having a sieve at the bottom, and is so constituted that a small or large sieve can be adjusted in it, as occasion may require. The sifting-box slides on horizontal guides or ways, along which it is shaken backward and forward by the rod Z, connecting it with crank-wheel z'.

As the different sized iiasks to be used would require more or less sand, the size of the openings can be regulated by adjusting iron plates or false bottoms over them,having apertures adapted to the size of the flasks used, the slides in all cases closing the openings when a sufficient quantity of sand is discharged. A n

Operation: Before starting the machine, it is necessary to adjust the height of the metal platform to the depth of the molding-flask, which is done by turning the wheel 14 with a handcrank, the amount of pressure required to press the sand into the flask being regulated by turning the wheel 25, which elevates or depresses the plunger. The platform l5 (which answers as a mold-board, having the pattern to be molded adjusted thereon) is placed on the bed and retained in its position by steady-pins 13. One section of the flask is now adjusted on the platform, and the machine is started by pulling on the handle of rod O, which operates upon the bell-crank N2 and throws the coupling-clutch P into the wheel r. The movable Vbed t now passes from the front toward the rear of the machine as it moves under the press. The back of the flask strikes the projections on the back of the curb, thereby drawing it o ff the arms a3 and adjusting itself on the top of the flask. The pins or projections 17 on the curb, falling into corresponding sockets of the flask, retain the curb in its position. As the bed moves on, the latch-dogs w'and y trail over the guidetracks L and M and levers Q and Q2 without acting upon them. When the bed arrives near the back ofthe machine andnearly under the sifter Bf, the detents 12 operate upon the levers 102, which draw the slide f 4 back, uncovering the openings at d* and d5, through which openings the sand passes into the sifting-box. As the bed progresses, the oblique backs of the detents 12 slide upon the pins 18, thereby detaching the detents from the levers 102. A further progression of the bed brings the pins z on the bed in contact with the levers 9, reversing theirmotion, and closes the openings. A further backward movement of the bed brings the arm c3 in contact with lever 8, thereby disengaging the clutch p from wheel r', and stops the bed. About the same time j sufficient quantity of sand upon the pattern. y

When the wheel T has nearly performed one revolution, the pin 19 on its disk raises the lever 5, which moves the rock-shaft m, operating the bell-crank and throwing clutch P into the wheel r2, reversing the motion of the bed, which now moves forward, and in so doing the forked arm .fr shifts lever V to its first position and stops the sifter. As the bed progresses forward and nearly arrives under the openings c4 c5, the latch-dog w enters the guidetrack M, shifting the bar K, which couples wheel Z to the shaft S. Just at this time the latch-dog y strikes against lever Q2, which operates bar 0, thereby detaohing the coupling p from wheels r2 and stops the bed. The wheel Z Vnow sets in motion wheel g, which operates the cranks h and slide e4, uncovering the opening at c4 c5, and allowing the sand to ll the flask and curb, and immediately afterV closes it again, thereby cutting off the sand from the hopper and leaving the ask and curb filled. As the wheel g has nearly finished a `\revolution, the pin 20 in its disk raises the lever 7, which moves the rock-shaft and at the same time raises the connecting-rod 22,to which is attached pin a5, lifting the detent R, and also operates the bell-crank N2, so as to attach wheel r2 to shaft H. This moves the bed forward, and as it moves the latch-dog y is detached from the lever Q2, which by means of the weight attached to it falls back to its first position. J ust before the bed arrives under the press the latch-dog w enters the guide-track L, thereby shifting bar K, so as to couple wheel Y with shaft S. About the same time the latch-dog y strikes against lever Q (operating as on lever Q2) and stops the bed. As the flask arrives directly under the press the crank-wheels e e now make their revolution, and through connecting-rods ff work the toggle-joints of the press or plunger, so as to force the sand through the curb into the iiask, and withdraw the plunger immediately, which rises to its first position. Just as the wheel d has about fin- -ished a revolution the pin 26 in its disk raises the rock-shaft in a manner described before, and starts the bed again, the lever Q falling back to its first position. As the bed leaves the press, the curb rises upon the arms c2. When coming in contact with the stops z2, it is retained there while the bedmoves forward to the starting-point. In the meantime the bar A3 strikes off the surplus sand from the top of the fiask, so as to leave its surface level. When the bed arrives at the front of the machine, it is stopped b v latch-dog g/ coming in contact with stop P, which throws the coupling out of the wheel r2. Should there be any f slight inequality-in the depth of the flasks, the

bar or strike Will adapt itself tothe surface of the iiask by curved runners z5, moving upon the upper edges of the vflask. One section of the ask being prepared in the manner above described, it is reversed on the bed and takesy the place of platform 15, which is removed.

The sprue-piece X, Fig. 8, is now placed erect on the pattern as it lies embedded in the sand, the sprue-pieee being supported by pins, as shown in Fig. 8, aud another section of a'liask is adjusted on the one prepared, and goes through the same operation as the former, making the two sections complete. The flask is now parted and the pattern and 4sprue-piece drawn in the usual Way.

The cross-bars z, Fig, 7, in the ask are made of iron of suitable thickness and secured to the inner sides of the ask, having on their lower edges a succession of irregular or saw teeth, to prevent the sand from falling out While handling the ask.

Having thus fully described the parts and combination of parts and operation of the moldinglmaehine, what is claimed therein as my invention isl. The making of molds in sand by the al ternate motions of a sifter, sliding knife to cut otr" the sand when the flask is filled, press,

and movable bed connected with and Worked by the continuous motion of a single shaft,

, substantially as described in this speciiication.V I do not claim the sifter or p'ress as my invention.

2. The moving, stopping, and starting of l the bedto and from the points Where the operations of sifting, filling, and pressing the sand are done by the continuous rotary motion of a single shaft, substantially as de- 'f scribed in this specification.

` 3. The method of striking the surplus sand from the top of the flask after the curb is removed by means of a self-adjusting bar or knife, substantially as described and set forth in this specification.

EDWARD SATTERLEE.

Vitnesses:

E. R, SATTERLEE, ALFRED TALL. 

